公开(公告)号：US06292278B1

公开(公告)日：2001-09-18

申请号：US09437900

申请日：1999-11-09

Applicant: Sung-min Cho ,  Won-hyung Lee ,  Hwan-young Choi ,  Moon-gyu Lee ,  Jee-hong Min ,  Young-il Kim ,  Jin-seung Choi ,  Jae-yong Eum

Inventor： Sung-min Cho ,  Won-hyung Lee ,  Hwan-young Choi ,  Moon-gyu Lee ,  Jee-hong Min ,  Young-il Kim ,  Jin-seung Choi ,  Jae-yong Eum

IPC: G02B532

CPC classification number: G02B26/106

Abstract: A beam scanning system including: a light source; a deflection disc rotatably installed over the light sources and having a hologram pattern on each of the upper and lower surfaces thereof, for diffracting beams emitted from the light source; and a plurality of mirrors for reflecting beams that have been diffracted by the deflection disc, to change the diffracted paths of the beams. Each of the upper and lower hologram patterns is formed with a low density relative to a one-sided hologram pattern.

Abstract translation: 一种光束扫描系统，包括：光源; 偏转盘，其可旋转地安装在光源上并且在其上表面和下表面中的每一个上具有全息图图案，用于衍射从光源发射的光束; 以及用于反射由偏转盘衍射的光束的多个反射镜，以改变光束的衍射路径。 每个上全息图和下全息图都相对于单面全息图形成低密度。

公开(公告)号：US6157472A

公开(公告)日：2000-12-05

申请号：US422348

申请日：1999-10-21

Applicant: Jae-yong Eum ,  Hwan-young Choi ,  Sung-min Cho ,  Moon-gyu Lee ,  Jee-hong Min ,  Young-il Kim

Inventor： Jae-yong Eum ,  Hwan-young Choi ,  Sung-min Cho ,  Moon-gyu Lee ,  Jee-hong Min ,  Young-il Kim

IPC: B41J2/44 ,  G02B26/10 ,  H04N1/113 ,  G02B5/32

CPC classification number: G02B26/105

Abstract: A multi-laser scanning unit (LSU) in which scanning lines incident parallel onto a photoreceptor have the same scanning direction. The multi-laser scanning unit includes: a driving source for providing a rotatory force; a deflection disk installed around a rotary shaft of the driving source having at least two sectors with a hologram pattern for diffracting and deflecting incident light, for scanning light through rotation; at least two light sources installed facing one surface of the deflection disk for irradiating light lines onto predetermined points in the at least two sectors of the deflection disk, the predetermined points are symmetrical by the rotary center of the deflection disk; a light path changing portion for changing traveling paths of the plurality of scanning lines formed by the rotation of the deflection disk, such that the centers of the scanning lines or extended imaginary lines of the scanning lines pass the rotary axis of the deflection disk; and a scanning direction changing portion for changing the scanning direction of one scanning line scanned by the deflection disk in the opposite scanning direction, such that all the scanning lines scan an image in the same scanning direction.

Abstract translation: 多个激光扫描单元（LSU），其中平行于感光体的扫描线具有相同的扫描方向。 多激光扫描单元包括：用于提供旋转力的驱动源; 安装在所述驱动源的旋转轴周围的偏转盘具有至少两个具有用于衍射和偏转入射光的全息图的扇区，用于通过旋转扫描光; 至少两个光源安装在偏转盘的一个表面上，用于将光线照射到偏转盘的至少两个扇区中的预定点上，预定点由偏转盘的旋转中心对称; 用于改变通过偏转盘的旋转形成的多条扫描线的行进路径的光路改变部分，使得扫描线的扫描线或延伸的假想线的中心通过偏转盘的旋转轴线; 以及扫描方向改变部分，用于改变沿相反扫描方向由偏转盘扫描的一条扫描线的扫描方向，使得所有扫描线沿相同的扫描方向扫描图像。

公开(公告)号：US6046831A

公开(公告)日：2000-04-04

申请号：US89394

申请日：1998-06-03

Applicant: Jae-yong Eum ,  Wong-hyung Lee ,  Sung-min Cho

Inventor： Jae-yong Eum ,  Wong-hyung Lee ,  Sung-min Cho

IPC: B41J2/44 ,  G02B26/10 ,  G03G15/01 ,  G03G15/04 ,  H04N1/12 ,  G02B5/32

CPC classification number: H04N1/1265 ,  G02B26/106 ,  H04N1/12 ,  H04N1/1911

Abstract: A beam scanning apparatus includes an optical source, a beam deflector having a deflection disk which is comprised of a plurality of sectors patterned to diffract a beam emitted from the optical source and has a reflective layer for reflecting an incident beam formed on the bottom surface of the beam deflector, and a driving source for rotating the deflection disk. A beam corrector is provided for correcting the beam deflected by the beam deflector.

Abstract translation: 一种光束扫描装置，包括光源，光束偏转器，其具有偏转盘，该偏转盘由多个扇形图案化以衍射从光源发射的光束的扇形区域，并具有用于反射形成在光源的底表面上的入射光束的反射层 光束偏转器和用于旋转偏转盘的驱动源。 光束校正器用于校正由光束偏转器偏转的光束。

公开(公告)号：US6039663A

公开(公告)日：2000-03-21

申请号：US84448

申请日：1998-05-27

Applicant: Jae-yong Eum

Inventor： Jae-yong Eum

IPC: F16H7/08 ,  F16H7/22 ,  F16H7/24 ,  G03G15/00 ,  G03G15/02

CPC classification number: G03G15/755 ,  F16H2007/0819 ,  G03G2215/017

Abstract: A belt steering apparatus for controlling inclined movement of the belt in, for example, a printer. The belt steering apparatus includes a first frame supporting a cylindrical roller having a predetermined portion which contacts an endless rotating belt, a second frame hinged to the center of the first frame, and a sliding member capable of sliding linearly, installed at one side of the first frame, and having an upper surface supporting a rotary shaft formed at one end of the roller, inclined from the direction of linear movement by a predetermined angle. A rack gear is provided on one side of the sliding member, and a pinion gear is connected to a rotary shaft of a motor mounted to the first frame, contacting a predetermined portion of the rack gear to linearly move the sliding member. Thus, the roller is easily tilted to forcibly raise and lower one side of the roller, and the pressure transferred from the belt can be withstood reliably.

Abstract translation: 一种皮带转向装置，用于控制皮带在例如打印机中的倾斜运动。 皮带转向装置包括支撑圆柱滚子的第一框架，所述圆柱滚子具有接触无端旋转带的预定部分，铰接到第一框架中心的第二框架，以及能够线性滑动的滑动构件， 第一框架，并且具有支撑形成在辊的一端的旋转轴的上表面，其从线性运动方向倾斜预定角度。 在滑动构件的一侧设置有齿条，小齿轮与安装在第一框架上的马达的旋转轴连接，与齿条的预定部分接触以使滑动构件直线移动。 因此，辊易于倾斜以强制地升高和降低辊的一侧，并且可以可靠地承受从带传递的压力。